wendyos-update

Generic A/B OTA tool for WendyOS. Replaces the Mender client and its Tegra glue on JetPack 7+ (meta-mender-tegra has no wrynose support). Standalone by design: CLI + systemd units, no agent dependency — wendy-agent integrates later by shelling out, exactly as it does with mender-update today.

• Plan: meta-edgeos/docs/plans/wendy-ota-update.md
• Platform validation (Phase 1, AGX Thor): meta-edgeos/docs/docs-ext/wendy-ota-phase1-results.md
• Mender analysis the design derives from: meta-edgeos/docs/docs-ext/mender-implementation.md

Frozen v1 contracts (docs/)

• docs/cli-contract.md — verbs, exit codes, JSON-lines progress
• docs/manifest-schema.md — the .wendy artifact format
• docs/state-schema.md — /data/wendyos-update/ state files
• docs/connector-architecture.md — the portability guarantee: a new board = one connector, the rest stays generic

Layout

cmd/wendyos-update/           CLI entry point
internal/artifact/             .wendy manifest + streaming reader
internal/engine/               update sequencing, state.json
internal/connector/            Connector interface + registry/auto-detect
internal/connector/tegrauefi/  Jetson connector (nvbootctrl + efivars + capsule)
systemd/                       verify + auto-commit units

Build

Cross-compiled by Yocto (go.bbclass) via the wendyos-update recipe in meta-edgeos. Host build for development: standard go build ./....

Status

Phase 2 (skeleton + tegra-uefi backend) in progress. The backend is a direct port of the three hardware-validated meta-edgeos state scripts; every platform primitive it uses was validated on t264/r38 (2026-06-07) and t234/r36 (production Mender stack).